混杂Petri-net的配电网多层级节点电压混杂控制

doi:10.11930/j.issn.1004-9649.202303108

摘要/Abstract

摘要： 开发利用分布式可再生能源是推进“双碳”目标的重要举措之一，而由于分布式发电具有较强的波动性和不确定性，其规模化接入会导致低压配电网电压越限等问题。为此，提出一种基于混杂Petri-net的混杂控制方法。上层采用基于节点电压越限条件触发的变压器挡位智能切换控制策略，以实现大幅度电压越限的粗调；下层采用基于功率-电压灵敏度的虚拟电厂有功功率优化动态调节策略，以实现电压频繁越限的细调。该方法在挖掘利用低压配电网自身变压器以及分布式可调节资源聚合调节潜力的同时，大大节省配置治理设备的资金投入，对助推分布式新能源的规模化消纳具有重要意义。

关键词: 配电网, Petri-net, 双层混杂控制, 电压越限, 功率-电压灵敏度, 分布式能源

Abstract: The development and utilization of distributed renewable energy (DRE) is beneficial to achieving the goal of “double carbon”. However, due to the strong volatility and uncertainty of DRE, its high-proportion penetration to distribution networks may bring operation challenges such as voltage violation. In this regard, a hybrid control method based on hybrid Petri-net is proposed to address the serious overvoltage/undervoltage issues. The method includes two layers, where the upper layer performs an intelligent transformer gear switching control strategy triggered by node voltage exceeding conditions, and the lower layer adjust the active power of virtual power plants based on power voltage sensitivity. In this way, the voltage would be adjusted in the coarse-fine hybrid manner. The proposed method could tap into the potential of utilizing the low-voltage distribution network's own transformers and distributed adjustable resources for aggregation and regulation. It is of great significance in promoting the large-scale consumption of DRE.

Key words: distribution network, Petri-net, two-level hybrid control, voltage overrun, power-voltage sensitivity, distributed renewable energy

郭伟, 安佳坤, 刘洋, 邵华, 杨书强, 窦春霞. 混杂Petri-net的配电网多层级节点电压混杂控制[J]. 中国电力, 2023, 56(9): 140-148,167.

GUO Wei, AN Jiakun, LIU Yang, SHAO Hua, YANG Shuqiang, DOU Chunxia. Hybrid Petri-net Based Voltage Hybrid Control for Multi-level Nodes in Distribution Networks[J]. Electric Power, 2023, 56(9): 140-148,167.

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链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202303108

https://www.electricpower.com.cn/CN/Y2023/V56/I9/140

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